<!DOCTYPE html>
<html lang="zh-CN">
 <head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
  <title> New Document </title>

  <!-- 新 Bootstrap 核心 CSS 文件 -->
  <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css">
  <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap-theme.min.css">
  <script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
  <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
  
    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="//cdn.bootcss.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="//cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>
    <![endif]-->
  <style>
	/* 这里是CSS代码 */
  .login{
    width:440px;
    height:220px;
    margin-top:200px;
    margin-left:auto;
    margin-right:auto;
    margin-bottom:0;
    border:1px solid #ccc;
    padding:20px;
  }
  .glyphicon.form-control-feedback{
    margin-right:25px;
  }
  </style>

 </head>
 <body>
 <div class="login">
  <form class="form-horizontal" role="form"> 
    <div class="form-group"> 
      <label for="inputEmail3" class="col-sm-2 control-label">Email</label> 
      <div class="col-sm-10"> 
        <input type="email" class="form-control" id="inputEmail3" placeholder="Email"> 
        <!--邮件部位人像图标-->
        <span class="glyphicon glyphicon-user form-control-feedback"></span>
      </div> 
    </div> 
    <div class="form-group"> 
      <label for="inputPassword3" class="col-sm-2 control-label">Password</label> 
      <div class="col-sm-10"> 
        <input type="password" class="form-control" id="inputPassword3" placeholder="Password">
        <!--密码部位带锁图标-->
        <span class="glyphicon glyphicon-lock form-control-feedback"></span>  
      </div> 
    </div> 
    <div class="form-group"> 
      <div class="col-sm-offset-2 col-sm-10"> 
        <div class="checkbox"> 
          <label> 
            <input type="checkbox"> Remember me 
          </label> 
        </div> 
      </div> 
    </div> 
    <div class="form-group"> 
      <div class="col-sm-offset-2 col-sm-10"> 
        <button type="submit" class="btn btn-default">Sign in</button> 
      </div> 
    </div> 
  </form> 
 </div>
 </body>
</html>